A recyclable scrap aluminum nonferrous metal depainting and smelting integrated device

Abstract

The present invention relates to the technical field of scrap aluminum treatment, and specifically to an integrated device for recyclable scrap aluminum, non-ferrous metal paint stripping, and smelting, comprising a kiln, a crushing mechanism, and a smelting mechanism. The crushing mechanism comprises a crushing motor, a transmission member, a rotating shaft, and a crushing blade. The crushing motor drives two rotating shafts to rotate in the same direction at differential speeds via the transmission member. The smelting mechanism comprises a spiral electromagnetic induction heater and a stirring member, which maintain a preset temperature T in the heating chamber and a preset temperature (0.3-0.5) T in the crushing chamber to complete the preheating operation for crushing and conveying the scrap aluminum material. The stirring member is configured to stir the heated scrap aluminum mixture at a preset speed, filter the scrap aluminum smelting mixture, and complete the centralized impurity collection operation. The present invention achieves preheating treatment during scrap aluminum crushing, while also achieving the effect of stirring the aluminum-water mixture to ensure fluidity and performing efficient filtration, greatly improving the efficiency and reuse value of scrap aluminum recovery.

Description

Technical Field

[0001] The invention relates to the technical field of waste aluminum treatment and waste metal recycling and reprocessing, and in particular to a recyclable waste aluminum and non-ferrous metal paint stripping and smelting integrated device. Background Art

[0002] Aluminum is used in a wide range of applications. Aluminum alloys are ubiquitous in nearly every industry, from civil and military applications to construction, transportation, communications, electronics and telecommunications, home appliances, electricity, and machinery. As production and usage increase, the volume of aluminum waste is also growing. Furthermore, many aluminum products are single-use, with a short time between manufacture and loss of usefulness. Consequently, these discarded materials have become a source of pollution. However, the recycling and regeneration of aluminum alloys is a complex technical undertaking. Given the wide range of aluminum products used and their fragmented distribution, centralized recycling, sorting, and subsequent recycling are complex and arduous tasks.

[0003] A query of the known prior art shows that "CN 206266690 U, a waste aluminum recycling and processing equipment" records that "the utility model discloses a waste aluminum recycling and processing equipment, including a heat treatment bin, a waste aluminum processing machine body and a discharge bin, a heat treatment bin is installed inside the waste aluminum processing machine body, a heat conduction plate is fixedly installed on the top of the heat treatment bin, a driven wheel is installed on the upper right side of the heat treatment bin, and the right side of the driven wheel is connected to the driving wheel through a conveyor belt, and a cooling plate is fixedly installed on the top of the discharge bin. In the utility model, a stirring device is provided in the heat treatment bin. For the dissolved aluminum, the internal impurities have different densities, resulting in stratification. After stirring, the aluminum is set aside so that the impurities fall into the sieve and are taken out. Finally, the heat-treated aluminum is sprayed into the discharge bin through a supercharger. Due to the same force, the impurities mixed in the molten aluminum are different, which can make the sprayed molten aluminum and impurities fall at different points, thereby separating the impurities."

[0004] However, the above-mentioned scrap aluminum recycling and processing equipment of the prior art still has the following technical problems: First, the scrap aluminum recycling equipment of the prior art has a relatively simple structure and an unreasonable space design. In actual scrap aluminum recycling operations, the recycling and reuse value of scrap aluminum such as aluminum cans and aluminum plates is particularly prominent. For aluminum cans, before heating and melting, due to their large structure, direct heating and melting effects are not good, and they need to be crushed to reach a predetermined particle size. At the same time, in order to better achieve the efficiency and accuracy of scrap aluminum non-ferrous metal depainting and melting, scrap aluminum recycling still needs to provide preheating of the crushed scrap aluminum materials to the required temperature. However, the scrap aluminum recycling equipment of the prior art cannot achieve the purpose of preheating the crushed scrap aluminum materials to a specified temperature when crushing aluminum products such as cans, and cannot achieve the reasonable allocation and utilization of the waste heat of heating and melting under the premise of limited heat resources to achieve the effect of efficient resource recycling and reuse. Second, in the heating and melting stage of scrap aluminum in the prior art, the relative density of aluminum is 2.70, the melting point is 660°C, and the boiling point is 2327°C. Therefore, when heated, the scrap aluminum material first melts to form aluminum liquid, and other materials such as non-ferrous metals are impurities. In order to improve the purity of aluminum liquid recycled from scrap aluminum, the aluminum liquid mixture needs to be filtered. The conventional filtering structure is relatively simple and the use effect is not good. It is impossible to stir the aluminum liquid mixture to ensure fluidity while also efficiently filtering the impurities in the aluminum liquid mixture, thereby completing the purpose of automatic collection. The filtering and impurity collection effects are not good, which reduces the operating efficiency of scrap aluminum non-ferrous metal depainting, smelting, recycling and reuse, and also seriously affects the purity of aluminum ingots recycled from scrap aluminum. Summary of the Invention

[0005] In order to solve the shortcomings and deficiencies of the existing technologies for the treatment of waste aluminum, the present invention provides an integrated device for depainting and smelting waste aluminum and non-ferrous metals with a compact structure, reasonable design and high space utilization, which can achieve the purpose of preheating the crushed waste aluminum materials at a specified temperature when crushing aluminum products such as cans, and can stir the aluminum-water mixture to ensure fluidity while efficiently filtering impurities in the aluminum-water mixture, thereby completing the automatic collection and recycling of recyclable waste aluminum and non-ferrous metals.

[0006] The present invention adopts the following technical solutions to achieve the above-mentioned purpose:

[0007] A recyclable scrap aluminum non-ferrous metal paint removal and smelting integrated device, comprising a cellar, a crushing mechanism and a smelting mechanism; the cellar is vertically distributed and cylindrical in structure, and is provided with a crushing chamber and a heating chamber distributed in an annular manner from the inside to the outside; the crushing chamber and the heating chamber are separated by a partition; and a feed port is provided at the top of the crushing chamber and a discharge port is provided at the bottom; the crushing mechanism comprises a crushing motor, a transmission part, a rotating shaft and a crushing knife; the crushing motor is arranged on the cellar through a bracket, the rotating shaft is vertically distributed and rotatably arranged in the crushing chamber, and the crushing knife is distributed up and down. Multiple, evenly spaced components are arranged on the rotating shaft; the rotating shaft and crushing blades are arranged in two sets symmetrically distributed around the center, and the crushing blades on the two rotating shafts are staggered vertically; the crushing motor drives the two rotating shafts to rotate in the same direction and at differential speeds via the transmission member; the crushing chamber transports crushed aluminum scrap of a preset particle size into the heating chamber via a conveyor member; the smelting mechanism includes a spiral electromagnetic induction heater and a stirring element; the outer wall of the cellar is provided with a hollow operating area and an induction area distributed vertically, and the electromagnetic induction heater is mounted in the induction area via a bracket. The heating chamber and the crushing chamber are connected by an exhaust pipe, maintaining a preset temperature T in the heating chamber and a preset temperature (0.7-0.85) T in the crushing chamber to complete the preheating operation for crushing and conveying the aluminum scrap; the stirring element is configured to stir the heated aluminum scrap mixture at a preset speed, while filtering the aluminum scrap smelting mixture and completing the centralized collection of impurities; the bottom of the cellar is also provided with a cooling chamber, which is equipped with a cooling plate.

[0008] As a preferred technical solution: a hopper is also connected to the feed port; temperature probes are provided in the heating chamber and the crushing chamber, and the temperature probes in the heating chamber maintain signal connection with the electromagnetic induction heater.

[0009] A further preferred technical solution is as follows: the partition is made of a high thermal conductivity material; and the thickness ratio of the partition to the outer wall of the cellar is 1:3, and an insulation board is also installed on the outer wall of the cellar.

[0010] A further preferred technical solution: the transmission member includes a sun gear, a first planetary gear and a second planetary gear; the sun gear is arranged on the output shaft of the grinding motor, the first planetary gear is arranged on one of the rotating shafts, and the second planetary gear is arranged on the other rotating shaft, and the diameter of the first planetary gear is kept larger than the diameter of the second planetary gear, and the sun gear maintains meshing transmission with the first planetary gear and the second planetary gear.

[0011] A further preferred technical solution is that the gap between the upper and lower dislocations of the crushing knives distributed on the two rotating shafts is maintained at 1-5 cm.

[0012] A further preferred technical solution: the conveying part includes a high-power suction conveyor, a high-temperature resistant conveying pipe and a discharge pipe; an installation cavity is provided on one side of the partition; the suction conveyor is fixedly installed in the installation cavity through a bracket, and one end of the high-temperature resistant conveying pipe is connected to the input end of the suction conveyor through a flange joint, and the other end leads to the bottom of the crushing chamber; one end of the discharge pipe is connected to the output end of the suction conveyor, and the other end leads to the heating chamber; the discharge pipe is located at the upper part of the heating chamber, and a switch valve is also provided at one end.

[0013] A further preferred technical solution is as follows: a fan, an electromagnetic control valve and a one-way valve are installed on the exhaust pipe in sequence, so that the hot air flow can only enter the crushing chamber through the heating chamber; the temperature measuring probe in the crushing chamber maintains signal connection with the fan and the electromagnetic control valve respectively.

[0014] A further preferred technical solution: the stirring member includes a support frame and a rotating structure; the support frame includes an integrally formed upper ring plate, a lower ring plate, an inner connecting rod and an outer connecting rod; the upper ring plate is horizontally distributed and is an annular structure, and the inner diameter is consistent with the outer diameter of the partition, and the outer diameter is consistent with the outer diameter of the heating chamber; and the upper ring plate is also provided with a plurality of evenly distributed through holes, and a mounting hole is also provided between two adjacent through holes; the lower ring plate has the same structure as the upper ring plate; the inner connecting rod is a plurality of evenly distributed annularly and is arranged on the inner side of the upper ring plate and the lower ring plate; the outer connecting rod is also a plurality of evenly distributed annularly and is arranged on the outer side of the upper ring plate and the lower ring plate; the rotating structure includes a rotating motor, a driving wheel and a driven wheel; the rotating motor is fixedly installed in the operating area through a bracket, the driving wheel is sleeved and installed on the output shaft of the rotating motor, and the driven wheel is arranged on the outer side of the upper ring plate, and the driving wheel and the driven wheel are kept in meshing transmission.

[0015] A further preferred technical solution: the stirring member also includes a filter structure, which includes a mesh plate, side wing plates, a bottom plate, a cover plate and a collecting plate; the mesh plate is distributed vertically and is provided with evenly distributed filter holes, and there are two side wing plates distributed on the left and right, the bottom plate is arranged at the bottom of the mesh plate, and the cover plate is arranged at the top of the mesh plate; the collecting plate is parallel to the mesh plate, and is connected and fixed to the bottom plate and the side wing plates, and the enclosed area of ​​the collecting plate, the bottom plate and the side wing plates forms a waste collection chamber; and the widths of the bottom plate and the cover plate are the same; a handle is also provided on the cover plate; and the filter structure and the mounting holes are multiple groups of matching installations, and the size of the filter holes of the multiple annularly distributed mesh plates tends to gradually decrease in the clockwise direction.

[0016] A further preferred technical solution is as follows: the side wall of the cooling chamber is provided with a slide groove, the side wall of the cooling plate is provided with a guide column, and the guide column is installed in matching with the slide groove; the center of the cooling plate is a groove structure, and a mold forming plate is adapted to be installed; the outer end of the cooling plate is provided with an end cover, and a handrail is provided on the outside of the end cover.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the integrated smelting device has a compact structure, a reasonable design, a high space utilization rate, saves more than 20% of materials, and effectively reduces manufacturing costs; the entire structure is relatively short, saving structural space, and the overall structure of the traditional scrap aluminum recycling crushing process, preheating process, and heating and melting process can compress the production line length by more than 80%; at the same time, it also achieves the purpose of efficiently crushing aluminum products such as cans while still being able to use the waste heat from heating and melting to preheat the crushed scrap aluminum materials to a specified temperature. Compared with scrap aluminum melting heaters of the same power, when the melting heating resources are equal, the heat utilization rate can be increased by about 40%; further, a support frame, a rotating structure, and a filter structure are arranged in the heating chamber, so that the scrap aluminum mixed liquid is stirred at a preset speed through the screen plate, and the scrap aluminum smelting mixed liquid is efficiently filtered and impurities are collected in a centralized manner. This further achieves the purpose of stirring the aluminum-water mixed liquid to ensure fluidity while also efficiently filtering and purifying impurities in the aluminum-water mixed liquid, thereby completing the automated collection of pure aluminum water and waste impurities, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0020] Figure 2 for Figure 1 Cross-sectional structural diagram;

[0021] Figure 3 for Figure 2 A magnified view of the structure of part A;

[0022] Figure 4 for Figure 2 A magnified view of the structure of part B;

[0023] Figure 5 It is a structural schematic diagram of the crushing mechanism of the present invention;

[0024] Figure 6 for Figure 5 A top view of

[0025] Figure 7 for Figure 6 CC section view in;

[0026] Figure 8 It is a partial structural diagram of the stirring element of the present invention;

[0027] Figure 9 It is a three-dimensional diagram of the filter structure of the present invention.

[0028] In the figure: 1. cellar; 11. crushing chamber; 12. heating chamber; 13. partition; 14. feed port; 15. discharge port; 16. operation area; 17. induction area; 18. exhaust pipe; 19. cooling chamber; 110. cooling plate; 111. hopper; 112. fan; 113. electromagnetic control valve; 114. one-way valve; 115. chute; 116. guide column; 117. mold forming plate; 118. end cover; 119. handrail; 2. crushing mechanism; 21. crushing motor; 22. transmission part; 221. sun gear; 222. first planetary gear; 223. second planetary gear; 23. rotating shaft; 24. crushing knife; 3. smelting mechanism; 31. Electromagnetic induction heater; 32. Stirring element; 33. Support frame; 331. Upper ring plate; 332. Lower ring plate; 333. Inner connecting rod; 334. Outer connecting rod; 335. Through hole; 336. Mounting hole; 34. Rotating structure; 341. Rotating motor; 342. Driving wheel; 343. Driven wheel; 35. Filter structure; 351. Mesh plate; 352. Side plate; 353. Bottom plate; 354. Cover plate; 355. Collecting plate; 356. Filter hole; 357. Handle; 4. Conveying element; 41. Suction conveyor; 42. High-temperature resistant conveying pipe; 43. Discharge pipe; 44. Mounting cavity; 45. Switch valve; 5. Temperature measuring probe; 6. Insulation plate. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] It should be noted that, in the specific embodiments of the present invention, terms such as "first" and "second" and other relational terms that may appear are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, terms such as "include", "comprise" or any other variants thereof that may appear are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the phrase "including a ..." or other defined elements that may appear does not exclude the presence of other identical elements in the process, method, article or device that includes the elements.

[0031] In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "provided with" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0032] Example: Figures 1 to 3 As shown:

[0033] A recyclable scrap aluminum and non-ferrous metal paint removal and smelting integrated device comprises a cellar body 1, a crushing mechanism 2 and a smelting mechanism 3. The smelting integrated device has a compact structure, a reasonable design, and a high space utilization rate, saving more than 20% of materials, effectively reducing the manufacturing cost; the entire structure is relatively short, saving structural space, and the overall structure can compress the production line length by more than 80% compared with the traditional scrap aluminum recycling crushing process, preheating process and heating and melting process. The cellar body 1 is vertically distributed and has a cylindrical structure, and is provided with a circularly distributed crushing chamber 11 and a heating chamber 12 from the inside to the outside; that is, the crushing chamber is located in the center, and the heating chamber is located outside the crushing chamber, forming an annular structure. The crushing chamber 11 and the heating chamber 12 are separated by a partition 13; the partition 13 is made of a high thermal conductivity material; the heating chamber is the main cavity for melting scrap aluminum, and the temperature is relatively high, and heat is then conducted through the partition to facilitate preheating of the crushing chamber. The thickness ratio of the partition 13 to the outer wall of the cellar body 1 is 1:3. The purpose of this arrangement is to ensure a stable support while making use of the space provided by the partition and the wall thickness to arrange the structure in a reasonable manner. The outer wall of the cellar body 1 is also covered with an insulation board 6. The purpose of this arrangement is to ensure the stability of the heating and melting temperature of the heating chamber while preventing injuries caused by accidental touch from the outside. The top of the crushing chamber 11 is provided with a feed port 14 and the bottom is provided with a discharge port 15; a hopper 111 is also connected to the feed port 14; with this arrangement, the waste aluminum material of used cans enters the crushing chamber from the feed port, and the crushed material is transported from the discharge port to the heating chamber through a conveyor.

[0034] In this embodiment, the crushing mechanism 2 includes a crushing motor 21, a transmission member 22, a rotating shaft 23 and a crushing knife 24. The crushing motor 21 is fixedly installed on the cellar body 1 through a bracket, and the rotating shaft 23 is vertically distributed and rotatably arranged in the crushing chamber 11. The upper and lower ends of the rotating shaft are connected to the cellar body through bearings. The crushing knife 24 is distributed in multiples up and down, and is evenly arranged on the rotating shaft 23. Among them, the rotating shaft 23 and the crushing knife 24 are two groups distributed symmetrically with respect to the center, and the crushing knives 24 distributed on the two rotating shafts 23 are staggered up and down; specifically, the gap between the upper and lower staggered crushing knives 24 distributed on the two rotating shafts 23 is maintained at 1-5 cm. The crushing knife is made of superhard material. The purpose of such a setting is to efficiently crush the incoming waste aluminum materials such as cans by the staggered crushing knives, further improve the crushing effect of the waste aluminum materials, and thereby meet the requirements of uniform particle size of the waste aluminum materials, providing a strong foundation for the subsequent rapid and efficient melting of waste aluminum.

[0035] To achieve synchronous rotation of the two rotating shafts and improve the material crushing effect, the pulverizing motor 21 drives the two rotating shafts 23 through the transmission member 22, which rotates in the same direction while maintaining differential speed. The transmission member 22 includes a sun gear 221, a first planetary gear 222, and a second planetary gear 223. The sun gear 221 is mounted on the output shaft of the pulverizing motor 21, the first planetary gear 222 is mounted on one of the rotating shafts 23, and the second planetary gear 223 is mounted on the other rotating shaft 23. The diameter of the first planetary gear 222 is maintained larger than the diameter of the second planetary gear 223, and the sun gear 221 maintains a meshing transmission with the first and second planetary gears 222 and 223. With this arrangement, when the pulverizing motor is activated, the sun gear rotates synchronously; the sun gear maintains a meshing transmission relationship with the first and second planetary gears, so that the rotation of the sun gear also drives the synchronous rotation of the first and second planetary gears. This results in the synchronous rotation of the two rotating shafts, which in turn achieves high-speed rotation of the pulverizing blades. At the same time, the diameter of the first planetary gear is greater than that of the second planetary gear, so the speed of the second planetary gear and the corresponding shaft will be greater than the speed of the first planetary gear, which will form a differential rotation of the two shafts, greatly improving the efficiency of the crushing operation of waste aluminum materials such as cans and waste aluminum plates.

[0036] In this embodiment, the crushing chamber 11 transports crushed aluminum scrap of a preset particle size into the heating chamber 12 via a conveying member 4. Specifically, the conveying member 4 comprises a high-power suction conveyor 41, a high-temperature-resistant conveying pipe 42, and a discharge pipe 43. A mounting chamber 44 is provided on one side of the partition 13. The suction conveyor 41 is fixedly mounted within the mounting chamber 44 via a bracket. One end of the high-temperature-resistant conveying pipe 42 is connected to the input end of the suction conveyor 41 via a flange joint, and the other end leads to the bottom of the crushing chamber 11. Specifically, one end of the high-temperature-resistant conveying pipe is connected to the discharge port. The discharge pipe 43 has one end connected to the output end of the suction conveyor 41 and the other end leads to the heating chamber 12. The discharge pipe 43 is located above the heating chamber 12 and is equipped with an on-off valve 45 at one end. With this arrangement, the simultaneous activation of the high-power suction conveyor and the on-off valve completes the conveyance of aluminum scrap from the crushing chamber to the heating chamber, providing favorable conditions for subsequent melting and refining of the aluminum scrap in the heating chamber.

[0037] In this embodiment, the smelting mechanism 3 includes a spiral electromagnetic induction heater 31 and a stirring element 32. The outer wall of the kiln 1 is provided with a hollow operating area 16 and an induction area 17, arranged vertically. The electromagnetic induction heater is a spiral structure and is connected to an electronic control unit to activate heating when powered on and deactivate it when powered off. The electromagnetic induction heater 31 is mounted on the induction area 17 via a bracket. All power required in this embodiment is supplied by an external power source, and the inner wall of the heating chamber is coated with a high-temperature resistant coating. With this arrangement, the electromagnetic induction heater heats the heating chamber until the temperature probe within the heating chamber reaches a preset temperature T. Depending on the actual requirements, T is the melting temperature of the scrap aluminum, which is 660-670 degrees Celsius. The heating chamber 12 and the crushing chamber 11 are connected by an exhaust pipe 18, maintaining the preset temperature T in the heating chamber 12 and the preset temperature (0.3-0.5) T in the crushing chamber 11, completing the preheating process for crushing and conveying the scrap aluminum. The exhaust pipe is located within the inner cavity of the partition. Preferably, an LED display screen can be provided on the outside of the cellar body for connecting a temperature measuring probe and displaying the temperature of the heating chamber and the crushing chamber in real time.

[0038] In a preferred embodiment, the exhaust pipe 18 is also sequentially installed with a fan 112, an electromagnetic control valve 113, and a one-way valve 114, so that the hot air flow can only enter the crushing chamber 11 through the heating chamber 12; the temperature probe 5 in the crushing chamber 11 maintains signal connection with the fan 112 and the electromagnetic control valve 113 respectively. The heating chamber 12 and the crushing chamber 11 are provided with temperature probes 5, and the temperature probe 5 in the heating chamber 12 maintains signal connection with the electromagnetic induction heater 31. With such a configuration, the heat conduction effect of the partition cannot provide a good preheating effect for the crushed scrap aluminum material. Then, by turning on the fan and the electromagnetic control valve, the residual heat in the heating chamber can be transferred to the crushing chamber, which also realizes a waste heat utilization. At the same time, a one-way valve is set in the exhaust pipe to ensure that the heat flow can only enter the crushing chamber from the heating chamber, thereby ensuring that the preheating temperature in the crushing chamber is moderate. At the same time, it also achieves the purpose of efficiently crushing aluminum products such as cans while still being able to use the residual heat of heating and melting to preheat the crushed scrap aluminum materials to a specified temperature. Compared with scrap aluminum melting heaters of the same power, when the melting heating resources are equal, the heat utilization rate can be increased by about 40%.

[0039] In this embodiment, the stirring element 32 is configured to stir the heated scrap aluminum mixture at a preset rotational speed, while simultaneously filtering the smelted scrap aluminum mixture and collecting impurities. Specifically, the stirring element 32 comprises a support frame 33 and a rotating structure 34. The support frame 33 comprises an integrally formed upper ring plate 331, a lower ring plate 332, an inner connecting rod 333, and an outer connecting rod 334. The upper ring plate 331 is horizontally arranged and annular in shape, with an inner diameter that matches the outer diameter of the partition plate 13 and an outer diameter that matches the outer diameter of the heating chamber 12. In other words, the support frame is integrally mounted on the annular partition plate and integrally mounted within the heating chamber. The upper ring plate 331 is also provided with multiple evenly distributed through-holes 335 for material transport. Mounting holes 336 are located between adjacent through-holes 335. The mounting holes facilitate installation, replacement, and removal of the filter structure. The lower ring plate 332 has the same structure as the upper ring plate 331. The inner connecting rods 333 are multiple and evenly distributed in a ring shape, and are arranged on the inner side of the upper ring plate 331 and the lower ring plate 332; the outer connecting rods 334 are also multiple and evenly distributed in a ring shape, and are arranged on the outer side of the upper ring plate 331 and the lower ring plate 332; in this way, a stable support body can be formed, and bearings or ball structures can also be arranged between the upper ring plate, the lower ring plate and the partition to achieve a good rotation effect.

[0040] In a preferred embodiment, the rotating structure 34 includes a rotating motor 341, a driving wheel 342 and a driven wheel 343. The rotating motor 341 is fixedly installed in the operating area 16 through a bracket. The operating area is located at a higher position and does not affect the stirring operation of the molten mixture of scrap aluminum materials. The driving wheel 342 is sleeved and installed on the output shaft of the rotating motor 341, and the driven wheel 343 is arranged on the outer side of the upper ring plate 331, and the driving wheel 342 and the driven wheel 343 are kept in meshing transmission. With such a setting, when the staff starts the rotating motor, the rotating motor will drive the driving wheel to rotate synchronously, and then the driving wheel will drive the driven wheel to rotate synchronously, that is, drive the support frame as a whole to rotate, so as to achieve uniform stirring of the aluminum-water mixture. Among them, the structures inside the heating chamber are all made of high-temperature resistant materials to ensure excellent stirring and filtering effects.

[0041] In this embodiment, the stirring member 32 also includes a filter structure 35, wherein the filter structure 35 comprises a mesh plate 351, side plates 352, a bottom plate 353, a cover plate 354, and a collection plate 355. The mesh plate 351 is vertically arranged and has evenly distributed filter holes 356. This arrangement is used to filter impurities in the aluminum-liquid mixture. The side plates 352 are arranged on the left and right, with the bottom plate 353 disposed at the bottom of the mesh plate 351 and the cover plate 354 disposed at the top of the mesh plate 351. The collection plate 355 is parallel to the mesh plate 351 and is fixedly connected to the bottom plate 353 and side plates 352. The area enclosed by the collection plate 355, bottom plate 353, and side plates 352 forms a waste slag collection chamber. The bottom plate 353 and cover plate 354 have the same width. The width of the base plate plus the thickness of the mesh plate equals the width of the mounting holes 336. This arrangement facilitates adaptable installation, creating a snap-fit ​​fit for the entire filter structure. The mounting holes in the upper ring plate are through-holes, while the mounting holes in the lower ring plate are grooved, providing snap-fit ​​support for the bottom of the mesh plate. The cover plate 354 is also provided with a handle 357. This arrangement facilitates pulling out the entire filter structure after scrap aluminum recycling operations, enabling disassembly and replacement of the filter structure and clearing the waste collected in the waste slag collection chamber. The filter structure 35 and mounting holes 336 are arranged in multiple matching groups, with the filter holes 356 of the multiple annularly distributed mesh plates 351 decreasing in size in a clockwise direction. In this embodiment, the preferred filter structure and mounting holes are evenly distributed in four groups. For example, in a clockwise direction, the filter holes of the mesh plate at 0 o'clock have the largest diameter, while those at 9 o'clock have the smallest diameter. The purpose of this setting is to achieve the classified storage of waste slag of different particle sizes, improve the filtration effect of the aluminum-water mixture and the purity of the aluminum liquid recovered from waste aluminum; it also facilitates the classified recycling and reprocessing of waste slag produced by waste aluminum melting.

[0042] like Figure 2As shown: In a preferred embodiment, a cooling chamber 19 is further provided at the bottom of the cellar body 1, specifically, the heating chamber and the cooling chamber are connected through an infusion pipe, wherein the infusion pipe is also provided with an electromagnetic switch valve for realizing the automatic discharge of aluminum liquid. A cooling plate 110 is provided in the cooling chamber 19 for cooling and molding the recycled aluminum liquid. A chute 115 is provided on the side wall of the cooling chamber 19, and a guide column 116 is provided on the side wall of the cooling plate 110, and the guide column 116 is installed in matching with the chute 115; such an arrangement plays a good guiding role, facilitating the removal of the formed scrap aluminum recycled ingots, the center of the cooling plate 110 is a groove structure, and a mold forming plate 117 is adapted to be installed; the mold forming plate is of various specifications and models, and mold forming plates of different specifications and models can be selected according to different actual needs to obtain the size and shape of the aluminum ingot that meets the needs of the ordering customer, usually a rectangular structure. The outer end of the cooling plate 110 is provided with an end cap 118, and the outer side of the end cap 118 is provided with a handrail 119; wherein the end cap is adapted to the cellar structure, and the purpose of providing the handrail is to facilitate the staff or auxiliary automated traction equipment to remove the cooling plate, thereby obtaining the corresponding scrap aluminum recycling aluminum ingot. The motor, electromagnetic control valve, fan, etc. of this embodiment can be connected and driven by a push button switch, or can be automatically controlled by a PLC controller. Among them, the working principle and technical circuit of the PLC controller are prior art for those skilled in the art, and this embodiment mainly protects the connection mechanical structure of the technical solution, so it will not be described in detail.

[0043] The operating principle of this integrated device for recyclable scrap aluminum, paint stripping, and smelting non-ferrous metals is as follows: First, the operator commissions the device and activates the electromagnetic induction heater to raise the temperature of the heating chamber. The electromagnetic induction heater is turned off when the temperature probe inside the heating chamber reaches a preset temperature, at which point the scrap aluminum begins to melt into molten aluminum. Simultaneously, the exhaust pipe fan and electromagnetic control valve are activated to transfer excess heat from the heating chamber to the crushing chamber. The exhaust pipe fan and electromagnetic control valve close when the temperature probe inside the crushing chamber reaches a preset value. This maintains the temperatures in both the heating and crushing chambers within the appropriate operating range.

[0044] In the next step, materials such as cans and scrap aluminum are added into the hopper, and the crushing motor is turned on simultaneously. The crushing motor will drive the staggered crushing knives to cut and crush the scrap aluminum materials entering the crushing chamber. In this process, the crushing chamber can achieve the purpose of efficiently crushing aluminum products such as cans while still using the waste heat from heating and melting to preheat the crushed scrap aluminum materials to a specified temperature. Compared with the scrap aluminum melting heater of the same power, when the melting heating resources are equal, the heat utilization rate can be increased by about 40%, which achieves the purpose of waste heat utilization, saves resources, and realizes the rational use of heat resources.

[0045] The staff then activates the high-powered suction conveyor and the on-off valve. Under the powerful suction, the pulverized and preheated scrap aluminum begins to flow from the pulverization chamber's outlet along a high-temperature-resistant conveying pipe to the discharge pipe, where it then enters the heating chamber. Simultaneously, the scrap aluminum entering the heating chamber begins to melt, forming a mixture of molten aluminum and waste slag. At this point, the staff activates the rotary motor, which drives the support frame and filter structure to rotate and stir the mixture. Specifically, the filter structure stirs the molten aluminum mixture, intercepting the waste slag through the filter holes during the stirring process and collecting it in the waste slag collection chamber. This allows the heated scrap aluminum mixture to be stirred at a preset speed by the screen plate while efficiently filtering the molten aluminum mixture and collecting impurities. This further achieves the goal of stirring the molten aluminum mixture to ensure fluidity while also efficiently filtering and purifying impurities within it. This results in automated separation and collection of purified molten aluminum and waste impurities, significantly increasing the value of scrap aluminum recycling.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A recyclable integrated device for scrap aluminum, nonferrous metals, paint stripping and smelting, characterized by: It includes a cellar body, a crushing mechanism and a smelting mechanism; the cellar body is vertically distributed and is a cylindrical structure, and is provided with a ring-shaped crushing chamber and a heating chamber from the inside to the outside; the crushing chamber and the heating chamber are separated by a partition; and a feed port is provided at the top of the crushing chamber and a discharge port is provided at the bottom; the crushing mechanism includes a crushing motor, a transmission member, a rotating shaft and a crushing knife; the crushing motor is arranged on the cellar body through a bracket, the rotating shaft is vertically distributed and rotatably arranged in the crushing chamber, and the crushing knife is a plurality of upper and lower distributed knives, and is evenly arranged on the rotating shaft; the rotating shaft and the crushing knife are two groups symmetrically distributed in the center, and the crushing knives distributed on the two rotating shafts are staggered in the upper and lower directions; the crushing motor drives the two rotating shafts to rotate in the same direction through the transmission member to maintain differential speed; the crushing chamber is The crushed scrap aluminum material of a preset particle size is transported to the heating chamber through the conveying member; the smelting mechanism includes a spiral structure electromagnetic induction heater and a stirring member, and the outer wall of the kiln body is provided with a hollow structure and an operating area and an induction area distributed up and down, and the electromagnetic induction heater is arranged in the induction area through a bracket; the heating chamber and the crushing chamber are connected to each other through an exhaust pipe, and the heating chamber maintains a preset temperature T, and the crushing chamber maintains a preset temperature (0.3-0.5) T to complete the preheating operation of crushing and conveying the scrap aluminum material; the stirring member is configured to complete the stirring of the heated scrap aluminum mixed liquid at a preset speed, and at the same time filter the scrap aluminum smelting mixed liquid and complete the centralized collection of impurities; the bottom of the kiln body is also provided with a cooling chamber, and a cooling plate is provided in the cooling chamber.

2. The recyclable scrap aluminum and nonferrous metal paint stripping and smelting integrated device according to claim 1, characterized in that: A hopper is also connected to the feed port; temperature probes are provided in the heating chamber and the crushing chamber, and the temperature probes in the heating chamber maintain signal connection with the electromagnetic induction heater.

3. The recyclable scrap aluminum and nonferrous metal paint stripping and smelting integrated device according to claim 2, characterized in that: The partition is made of a high thermal conductivity material; and the thickness ratio of the partition to the outer wall of the cellar is 1:3, and the outer wall of the cellar is also covered with an insulation board.

4. The recyclable scrap aluminum and nonferrous metal paint stripping and smelting integrated device according to claim 3, characterized in that: The transmission member includes a sun gear, a first planetary gear and a second planetary gear; the sun gear is arranged on the output shaft of the grinding motor, the first planetary gear is arranged on one of the rotating shafts, and the second planetary gear is arranged on the other rotating shaft, and the diameter of the first planetary gear is kept larger than the diameter of the second planetary gear, and the sun gear maintains meshing transmission with the first planetary gear and the second planetary gear.

5. The recyclable integrated device for paint stripping and smelting of scrap aluminum and non-ferrous metals according to claim 4, characterized in that: The gap between the upper and lower dislocations of the crushing knives distributed on the two rotating shafts is maintained at 1-5 cm.

6. The recyclable integrated device for paint stripping and smelting of scrap aluminum and nonferrous metals according to claim 5, characterized in that: The conveying component includes a high-power suction conveyor, a high-temperature resistant conveying pipe and a discharge pipe; an installation cavity is provided on one side of the partition; the suction conveyor is fixedly installed in the installation cavity through a bracket, one end of the high-temperature resistant conveying pipe is connected to the input end of the suction conveyor through a flange joint, and the other end leads to the bottom of the crushing chamber; one end of the discharge pipe is connected to the output end of the suction conveyor, and the other end leads to the heating chamber; the discharge pipe is located at the upper part of the heating chamber, and a switch valve is also provided at one end.

7. The recyclable integrated device for paint stripping and smelting of scrap aluminum and nonferrous metals according to claim 6, characterized in that: The exhaust pipe is also equipped with a fan, an electromagnetic control valve and a one-way valve in sequence, so that the hot air flow can only enter the crushing chamber through the heating chamber; the temperature measuring probe in the crushing chamber maintains signal connection with the fan and the electromagnetic control valve respectively.

8. The recyclable integrated device for paint stripping and smelting of scrap aluminum and nonferrous metals according to claim 7, characterized in that: The stirring member includes a support frame and a rotating structure; the support frame includes an integrally formed upper ring plate, a lower ring plate, an inner connecting rod and an outer connecting rod; the upper ring plate is horizontally distributed, is a ring structure, and the inner diameter is consistent with the outer diameter of the partition, and the outer diameter is consistent with the outer diameter of the heating chamber; and the upper ring plate is also provided with a plurality of evenly distributed through holes, and a mounting hole is also provided between two adjacent through holes; the lower ring plate has the same structure as the upper ring plate; the inner connecting rod is a plurality of evenly distributed annularly arranged ones, and is arranged on the inner side of the upper ring plate and the lower ring plate; the outer connecting rod is also a plurality of evenly distributed annularly arranged ones, and is arranged on the outer side of the upper ring plate and the lower ring plate; the rotating structure includes a rotating motor, a driving wheel and a driven wheel; the rotating motor is fixedly installed in the operating area through a bracket, the driving wheel is sleeved and installed on the output shaft of the rotating motor, and the driven wheel is arranged on the outer side of the upper ring plate, and keeps the driving wheel and the driven wheel meshing for transmission.

9. The recyclable integrated device for paint stripping and smelting of scrap aluminum and non-ferrous metals according to claim 8, characterized in that: The stirring member also includes a filter structure, which includes a mesh plate, side wing plates, a bottom plate, a cover plate and a collecting plate; the mesh plate is distributed vertically and is provided with evenly distributed filter holes, the side wing plates are two distributed on the left and right, the bottom plate is arranged at the bottom of the mesh plate, and the cover plate is arranged at the top of the mesh plate; the collecting plate is parallel to the mesh plate, and is connected and fixed to the bottom plate and the side wing plates, and the enclosed area of ​​the collecting plate, the bottom plate and the side wing plates forms a waste collection chamber; and the widths of the bottom plate and the cover plate are the same; a handle is also provided on the cover plate; and the filter structure and the mounting holes are multiple groups of matching installations, and the size of the filter holes of the multiple annularly distributed mesh plates tends to gradually decrease in the clockwise direction.

10. The recyclable integrated device for paint stripping and smelting of scrap aluminum and non-ferrous metals according to claim 9, characterized in that: The side wall of the cooling chamber is provided with a slide groove, and the side wall of the cooling plate is provided with a guide column, and the guide column is installed in matching with the slide groove; the center of the cooling plate is a groove structure, and a mold forming plate is adapted to be installed; the outer end of the cooling plate is provided with an end cover, and a handrail is provided on the outside of the end cover.

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